Harbin Medical University, Heilongjiang Higher Education Institutions, Harbin, Heilongjiang, China.
Nutr Cancer. 2010;62(8):1120-7. doi: 10.1080/01635581.2010.513800.
The study aimed to estimate dietary flavonol and flavone intakes and investigate major dietary sources by FFQ in Harbin of China. A total of 5,046 volunteers completed a semiquantitative food frequency questionnaire (FFQ). A random subsample of 167 healthy subjects completed the 7 consecutive 24-h dietary recalls and 2 FFQ for assessing the reproducibility and validity of FFQ. The correlation coefficients between 2 FFQ were 0.72 for flavonols and 0.65 for flavones; and between FFQ 2 and the 24-h dietary recall, they were 0.62 for flavonols and 0.58 for flavones. When flavonol and flavone intakes were categorized by quartile, complete and partial agreement ranged from 76% to 84%. The total intake of flavonols and flavones was 19.13 mg/day, and the mean flavonol and flavone intakes were 14.30 mg/day and 4.82 mg/day, respectively. Quercetin was the major contributor (31%) to total intake of flavonols and flavones, followed by kaempferol (22%). The main food sources of flavonols and flavones were apple (12%), potato (8%), celery (7%), eggplant (7%), and actinidia (5%). This work could facilitate the investigation on the proposed relation between these flavonoids and the prevention of chronic diseases.
本研究旨在通过半定量食物频率问卷（FFQ）评估中国哈尔滨居民的膳食类黄酮和黄烷酮摄入量，并探讨其主要膳食来源。共有 5046 名志愿者完成了半定量食物频率问卷（FFQ）。随机抽取 167 名健康受试者完成了 7 天连续 24 小时膳食回忆和 2 次 FFQ，以评估 FFQ 的重复性和有效性。类黄酮和黄烷酮的 2 次 FFQ 之间的相关系数分别为 0.72 和 0.65；FFQ2 与 24 小时膳食回忆之间的相关系数分别为 0.62 和 0.58。当将类黄酮和黄烷酮摄入量按四分位间距分类时，完全一致和部分一致的比例范围为 76%至 84%。类黄酮和黄烷酮的总摄入量为 19.13 毫克/天，类黄酮和黄烷酮的平均摄入量分别为 14.30 毫克/天和 4.82 毫克/天。槲皮素是类黄酮和黄烷酮总摄入量的主要贡献者（31%），其次是山奈酚（22%）。类黄酮和黄烷酮的主要食物来源是苹果（12%）、土豆（8%）、芹菜（7%）、茄子（7%）和猕猴桃（5%）。这项工作可以促进对这些类黄酮与慢性病预防之间拟议关系的研究。
